#!/bin/bash

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to you under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

COUNT=$1
# Assumes *full* data exists. This script only does 'head -${COUNT}' on the complete data files.
# Should rename ${SUITE}_last20.data to something more general..
TOOLDIR="${DERBYDIR}/${BRANCH_DIR}/tools/testing/reporting/scripts"
. ${TOOLDIR}/env

# We have one catalog per platform
if [ ! -e ${TESTLOGDIR} ]
then
  echo "${TESTLOGDIR} does not exist"
  exit
fi

# Get the list of testsuite we are running:
TESTLISTFILE="${DERBYDIR}/testing/testlist"
SUITES=`gawk '{ print $1 }' ${TESTLISTFILE} | grep -v "^#"`

# Get the set of platforms
cd ${TESTLOGDIR}
PLATFORMS=`ls`
NOOFPLFS=`echo ${PLATFORMS} | wc -w`
PLFNO=1

# Get the list of revisions
# Here we use all.
REVISIONSFILE="${REVISIONLIST}"
# REVISIONS=`cat ${REVISIONSFILE} | head -${COUNT} | gawk '{ print $1 }' | grep -v "^#"`
# The 'head -${COUNT}' is a bit rough: includes # comment lines...
STARTREV=`head -${COUNT} ${REVISIONSFILE} | gawk '{ print $1 }' | grep -v "^#" | tail -1`

# DEBUG echo "PLATFORMS: ${PLATFORMS}, SUITES: ${SUITES}"
for PLATFORM in ${PLATFORMS}
do
  echo "${PLATFORM} [${PLFNO}/${NOOFPLFS}]"
  for SUITE in ${SUITES}
  do
    echo "    ${SUITE}"
    # head -${COUNT} ${DERBYDIR}/testing/Full/plot/${PLATFORM}/${SUITE}.data > ${DERBYDIR}/testing/Full/plot/${PLATFORM}/${SUITE}_last20.data

    echo -n "" > ${DERBYDIR}/testing/Full/plot/${PLATFORM}/${SUITE}_last20.data
    while read LINE
    do
      LINEREV=`echo ${LINE} | gawk '{ print $2 }'`
      if [ ${LINEREV} -lt ${STARTREV} ]
      then
        # echo "        break on ${LINEREV}"
        break
      fi
      echo ${LINE} >> ${DERBYDIR}/testing/Full/plot/${PLATFORM}/${SUITE}_last20.data
    done < ${DERBYDIR}/testing/Full/plot/${PLATFORM}/${SUITE}.data

  done # SUITES
  let " PLFNO = ${PLFNO} + 1 "
done # PLATFORMS
